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| 02 Dec 2015 06:56 PM |
I failed a trig test today and this is the first test I've ever failed in my life. I usually get mid 80s but not this time.
A road rises 15 m for each 150 m of horizontal distance. What is the angle of inclination of the road to the nearest degree?
So I drew a right triangle with base 150m and hypotenuse 15m. How do I find the angle of elevation? The answer is 6 degrees but idk how to get it.
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| 02 Dec 2015 06:58 PM |
ik let me work it out
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| 02 Dec 2015 06:59 PM |
wait i need the other angle to work it out or its impossible
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| 02 Dec 2015 07:00 PM |
| There's no other angle. It's a right triangle so 90 degree angle. |
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| 02 Dec 2015 07:02 PM |
sina divide by a = sinb divided by b
sin 90 divided by 150 = sinb divided by 15
(sin 90 divided by 150) times by 15 = sin b
sin-1 [(sin90 divided by 150) times by 15] = b
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| 02 Dec 2015 07:02 PM |
the hypotenuse wouldn't be 15, the opposite side from the angle would be 15
#code print("You are the ugliest person I've ever heard") end |
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| 02 Dec 2015 07:02 PM |
sin-1 is the inverse of sin btw
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| 02 Dec 2015 07:04 PM |
you should get 5.7... degrees which is rounded up to 6 pay up plez
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| 02 Dec 2015 07:05 PM |
| can you use tan to explain? |
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| 02 Dec 2015 07:05 PM |
http://www.roblox.com/Donation-only-20-tix-or-is-it-item?id=158470414
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| 02 Dec 2015 07:06 PM |
what you mean tan? you use the sine rule...
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| 02 Dec 2015 07:06 PM |
is it 4.5
R$93,641 | ogm tis hragenflergn | offer on 499,939 rap |
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| 02 Dec 2015 07:07 PM |
its tan actually, he put that 15m on the wrong side of the triangle
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| 02 Dec 2015 07:08 PM |
| Someone explained it before aqua using tan in PM, sorry. |
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| 02 Dec 2015 07:08 PM |
no it isnt I got an A in maths I think i know what im on about
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| 02 Dec 2015 07:09 PM |
aqua, u didnt mess up, paper did. u did it right, but he messed up, which is what im trying to say
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| 02 Dec 2015 07:09 PM |
| Yes it is tan because the question is from a topic about tan. |
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| 02 Dec 2015 07:09 PM |
lol sure they did scam asf
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| 02 Dec 2015 07:09 PM |
it is tan and answer is 5.7 :P
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| 02 Dec 2015 07:10 PM |
you get the same using sin
so pay up... you never said it had to be in terms of tan
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| 02 Dec 2015 07:12 PM |
@Aqua
http://forum.roblox.com/Forum/ShowPost.aspx?PostID=179028813 |
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| 02 Dec 2015 07:13 PM |
i posted at 5:02 he posted at 5:03 you never specified
pay up
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WaterNeko
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| Joined: 19 Nov 2015 |
| Total Posts: 12 |
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| 02 Dec 2015 07:15 PM |
| okay make a shirt for 377 tix. |
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| 02 Dec 2015 07:16 PM |
| Well you never gave me the explanation I wanted. He did. Sorry but I'm donating it to him. |
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